JP7379224B2 - Periodic inspection process creation support device, periodic inspection process creation support method, and periodic inspection information linkage system - Google Patents

Description

Embodiments of the present invention relate to a periodic inspection process preparation support device, a periodic inspection process preparation support method, and a periodic inspection information coordination system for power plants, such as nuclear power plants, thermal power plants, and other plants.

In the background art shown below, a nuclear power plant will be explained as an example of a power generation plant.
At nuclear power plants, each plant is periodically shut down and regular inspections (regular inspections) are conducted in accordance with prescribed safety standards, such as ensuring the reactor's criticality prevention function and fuel decay heat removal function. be done. Plant conditions during periodic inspections change significantly due to processes such as fuel exchange. For example, to move fuel between the reactor and the fuel pool, the reactor water level is raised, and the waterway gates are opened during the transfer. Regular inspection processes such as equipment inspection and replacement are planned while ensuring plant safety by following these basic procedures.

The periodic inspection process for nuclear power plants is not uniform and differs from plant to plant. For this reason, the periodic inspection process is planned in advance by veteran engineers each time, and a periodic inspection process chart is created. When creating such a periodic inspection schedule, it is necessary to take into account the number of personnel required for the work, the number of days, parts to be arranged, work process, personnel allocation, securing of a work place, work constraints, production of documents necessary for the work, etc. While taking this into account, highly skilled engineers were conducting scheduling (creating and managing schedules), including staffing.

Specifically, after a schedule for each individual inspection task is created manually by a skilled engineer, a schedule for the entire inspection task is constructed while avoiding interference between tasks. was.

Additionally, during the actual periodic inspection work, field workers would submit work reports to the field work supervisor, and based on these reports, skilled engineers would grasp the work progress and make necessary schedule adjustments.

Furthermore, in order to support the planning of the regular inspection process as described above, devices for supporting the creation of various types of regular inspection processes have been proposed.

JP2012-208744A

However, in the periodic inspection process of a nuclear power plant, multiple tasks are carried out in parallel, and it is necessary to consider many constraints such as isolation (system isolation), avoidance of work area interference, and compliance with maintenance regulations. There is. Periodic inspection process plans that satisfy these constraints are created relying on the knowledge and experience of skilled engineers, but it is inevitable that the number of skilled engineers will decrease in the future, and future periodic inspection processes will need to be designed to reduce risks due to deficiencies. There is concern that this may occur.

In addition, for example, if there is a delay in work after a periodic inspection has started, and it is necessary to communicate the cause and situation to related workers and make adjustments for future work, conventionally, the experience of skilled engineers and Progress is made based on knowledge. On the other hand, after the Great East Japan Earthquake, engineers began to retire due to a long period of downtime, and with the introduction of a new inspection system, in addition to close risk management around important equipment responsible for cooling the reactor core, new measures such as fire and water overflow were introduced. There is also a tendency for management and inspections to be imposed, and regular inspections for restarting operations are increasingly requiring advanced knowledge and experience.

In view of these circumstances, the purpose of the present invention is to provide information to workers involved in related work about the cause, location, and system operation when delays or delays occur in the periodic inspection process of power plants, nuclear power plants, thermal power plants, and other plants. In order to provide a periodic inspection process creation support device, a periodic inspection process creation support method, and a periodic inspection information collaboration system that can contribute to preventing or shortening process delays by sharing information on impacts on areas, areas, risks, etc. be.

The periodic inspection process creation support device of the embodiment is a periodic inspection process creation support device that supports the creation of a periodic inspection process chart for periodic inspections of plants to be carried out by multiple groups, and includes an input section, a display section, and a regular inspection process chart. A database that stores information on work performed during the inspection period, inspection equipment data that is data on inspection equipment that is subject to inspection including important equipment, and safety regulation data that is all requirements for creating periodic inspection processes; a process management database in which information for managing the process of periodic plant inspections is registered; a work order control unit that performs work order-related settings based on the database and information stored in the process management database; From the information about the inspection equipment to be carried out during the relevant periodic inspection period other than the critical process entered based on the stored information, the inspection equipment data, and the safety regulations data, which inspection equipment is selected and in what priority order? A process sheet creation function unit that creates a procedure for assigning inspection times and creates the periodic inspection process sheet, the process of the periodic inspection process sheet created by the process sheet creation function unit, and the actual periodic inspection process. communication between a process monitoring unit that compares the progress status of the periodic inspection work with the progress status of the periodic inspection work and monitors whether the progress status of the actual periodic inspection work is progressing according to the periodic inspection process chart, and the plurality of groups that are connected to a network. and a communication function that allows progress information indicating the monitoring results in the process monitoring unit to be viewed in a plurality of the groups, and the work order control unit is configured to control the progress information indicating the monitoring results in the process monitoring unit for each of the inspection equipment to be inspected. At least one main work order that is created and related to a periodic inspection is divided into a plurality of sub-works based on at least one of the departments involved in the periodic inspection, the work type of the periodic inspection, and the inspection equipment that is the subject of the periodic inspection. a work order setting unit that accepts settings for dividing into orders and performs work order-related settings; a work order registration unit that registers sub-work order IDs that can individually identify the sub-work orders in the process management database; and a work plan. a plan information registration unit that associates plan information indicating the related sub-work order ID with the related sub-work order ID and registers it in the process control database; A performance information registration unit for registering.

According to the periodic inspection process preparation support device, the periodic inspection process preparation support method, and the periodic inspection information coordination system of the present invention, when a delay or a postponement occurs in the periodic inspection process of a plant, the cause is provided to the workers of related work, etc. Contribute to preventing or shortening process delays by sharing related risk information such as location of occurrence, impact on system operation, work area, important equipment, fire prevention division, flood boundary, dose rate, zone classification of controlled area, etc. can do.

FIG. 1 is a block diagram showing a schematic configuration of a periodic inspection process creation support device according to an embodiment. The figure which shows the structure of a work order control part. A diagram for explaining a process of dividing a main work order into sub-work orders. The figure which shows the example of a work order management table. 1 is a flowchart showing steps of a periodic inspection process creation support method according to an embodiment. The figure which shows the example of the screen which shows the progress status of periodic inspection work. A diagram for explaining groups connected by a network. The figure which shows the example of the screen which displays a risk. The figure which shows the example of the screen which displays a risk. The figure which shows the example of the screen which displays a risk. The figure which shows the example of the screen which shows a process chart.

Hereinafter, a periodic inspection process creation support device and a periodic inspection process creation support method according to embodiments will be described with reference to the drawings.

FIG. 1 is a block diagram showing a schematic configuration of a periodic inspection process creation support device 100 according to an embodiment. As shown in FIG. 1, the periodic inspection process creation support device 100 includes a database 101, a process creation support section 110, an input section 121, a display section 122, and a work order control section 130.

The database 101 stores work information 102 performed during the regular inspection period, inspection equipment data 103, safety regulations data 104, and past regular inspection process performance data 105.

The work information 102 to be performed during the regular inspection period stores information about the work to be performed during the regular inspection period, which is input from the input unit 121 by the process chart creator. This information includes basic information related to critical processes (nuclear power plant name, periodic inspection days, number of fuel replacements, number of neutron detectors replaced, number of control rod drive mechanisms inspected, etc.) Contains information on equipment to be inspected.

The inspection equipment data 103 includes related risk information such as inspection records, isolation, work areas, important equipment, fire prevention zones, flood boundaries, dose rates, and classification of controlled areas for each device of the nuclear power plant. Contains data. The data regarding inspection results includes data regarding the required number of days based on past inspection results.

The above-mentioned safety regulations data 104 stores data related to all safety regulations in a nuclear power plant, that is, all requirements for process creation, and the periodic inspection schedule is designed to ensure that all of these requirements are met. Created in

The past periodic inspection process performance data 105 stores information regarding critical processes and information regarding equipment inspections performed in non-critical processes with respect to processes performed in periodic inspections conducted in the past.

The work order control unit 130 performs work order related settings based on information stored in the database 101. The work order control unit 130 has various functions for setting main work orders. For example, the data accumulated in the database 101 described above may be used to describe the equipment to be worked on, the tasks involved in the work, the order of the work, instructions, the cost required for the work, the form of the work, the date and time to perform the work, and The location where the work will be carried out, risk information, the time required for the work, the planning information and performance information related to the above, information regarding the organization or department that will perform the work, the personnel assigned to the work, etc. are sorted and controlled by category.

As shown in FIG. 2, the work order control section 130 has a work order setting section 131, a work order registration section 132, a plan information registration section 133, and a performance information registration section 134 as basic components. The work order setting unit 131 receives settings for dividing at least one main work order related to periodic inspection into a plurality of sub-work orders. The work order registration unit 132 registers sub-work order IDs that can individually identify sub-work orders in the database (process management database) 101. The plan information registration unit 133 registers plan information indicating a work plan in the database (process management database) 101 in association with the related sub-work order ID. The performance information registration unit 134 registers performance information indicating work performance in the database (process management database) 101 in association with the sub-work order ID. The work order control section 130 includes, for example, a message processing section 135, a message storage section 136, an area registration section 137, a delay display section 138, a request reception section 139, a request display section 140, etc., which perform other functions.

The main work order in this embodiment is created for each device to be inspected. For example, one main work order is created in response to the inspection work of one piece of equipment, and it includes information on whether the equipment to be inspected is on the critical path, important equipment, fire protection area, flood boundary, dose rate, etc. Priorities may be given by ranking according to the classification of managed areas, etc., and how high the related risk is.

The work order control unit 130 performs settings for dividing a main work order into a plurality of sub-work orders. For example, as shown in FIG. 3, a main work order is divided into a plurality of sub-work orders based on at least one of the department involved in the periodic inspection, the form of the periodic inspection, and the equipment targeted for the periodic inspection.

Note that "division" in this embodiment refers to dividing individual items included in one main work order. In this way, it is possible to manage each type of periodic inspection based on the sub-work orders without changing the contents of the main work order. Additionally, information sharing and collaboration between departments can be strengthened. Additionally, it is possible to manage each device. Note that each sub-work order is given a sub-work order ID that allows the sub-work order to be individually identified. FIG. 4 shows an example of a work order management table that summarizes them.

As shown in FIG. 4, the main work order ID, related department, work type, target equipment, related sub work order ID, and change history are registered in the work order management table in association with the sub work order ID. . Note that the plan information includes a sub-work order ID, a main work order ID, a related department, a work type, a target device, and a related sub-work order ID.

In the related department field, a department that is involved in periodic inspections and that performs work on the corresponding sub-work order is registered. The image shown in FIG. 4 can be viewed not only by the group that actually performs the inspection work, but also by other groups (parallel or subsequent work groups, etc.) that need to share information. In addition, each is linked via the work order control unit 130 using work orders for each subject and sub-work order ID information classified by work type, etc., so as shown in FIG. Of these, predetermined departments are registered. A department ID that allows each department to be individually identified may be registered in this related department item.

In the work style field, the work style of the corresponding sub-work order, which is a regular inspection style, is registered.

In the item of target equipment, the name or type of equipment that is the target of periodic inspection and that is the target of the work of the corresponding sub-work order is registered. A device ID that allows each device to be individually identified may be registered in this target device item.

In the related sub-work order ID field, sub-work order IDs of other sub-work orders related to the corresponding sub-work order are registered. This sub-work order may be divided from another main work order. Note that sub-work orders registered from different main work orders may have the same ID number, but if the main work orders are included, identification becomes possible.

In this embodiment, the plurality of main work orders include a first main work order and a second main work order different from the first main work order. If a sub-work order split from the first main work order is related to the second main work order, the sub-work order ID of the first main work order is associated with the second main work order and stored in the work order management table. register. In this way, it is possible to coordinate the work of the first main work order and the second main work order. For example, if a predetermined sub-work order of the first main work order is delayed or brought forward, other related sub-work orders can be identified based on this sub-work order ID. Therefore, even if the main work orders are different, it is possible to coordinate each other's sub work orders.

In this embodiment, the first type of tree structure is composed of work steps that branch from the work subject, which is the main work order, and work stages that branch from the work steps. Further, a second type of tree structure is formed by sub-work orders branching from the main work order. In this embodiment, the first type of tree structure and the second type of tree structure are constructed separately. In other words, a first type of tree structure for dividing tasks and a second type of tree structure for linking one task with other tasks are provided. The first type of tree structure and the second type of tree structure are different from each other.

The process creation support unit 110 includes a periodic inspection process creation procedure creation function 111, a process chart creation function 112, a communication function 113, and a process monitoring unit 114.

In creating a regular inspection process chart, first, the process chart creator inputs information on the work to be performed during the regular inspection period from the input unit 121 (step 201 in FIG. 5 (flowchart)). This input work information to be performed during the regular inspection period is sent to a database together with information linked to the main work order for each subject and sub-work order IDs classified by work type etc. through the work order control unit 130. 101.

The regular inspection process creation procedure creation function 111 creates a regular inspection process creation procedure based on the work information 102 stored in the database 101 during the regular inspection period. First, among the work information 102 performed during the regular inspection period, basic information related to critical processes (nuclear power plant name, number of regular inspection days, number of fuel replacements, number of neutron detectors replaced, number of control rod drive mechanisms inspected, etc.) Based on this, a periodic inspection process chart (main process chart) for the main process is automatically generated from past performance data and displayed on the display unit 122 (step 202 in FIG. 5). Note that FIG. 1 shows an example of a periodic inspection process chart.

In a more specific example, when a process chart creator starts creating a process chart, the periodic inspection process creation support device 100 displays "Reactor critical process creation" on the display screen. When the process chart creator selects and executes the displayed "Create Reactor Critical Process", the work order control unit 130 links the main work order for each subject and the sub-work order ID classified by work type, etc. Based on the generator disconnection date and generator parallel date in the construction information during the period of regular inspection stored in the database 101 along with the information stored in the database 101, generator disconnection, reactor opening, fuel exchange, neutron A template for the critical process consisting of detector replacement, reactor restoration, reactor leakage inspection, reactor pre-startup test, reactor startup, and generator installation is created and displayed on the screen.

Next, the number of fuel exchanges and the number of neutron detectors replaced in the construction information during the period of regular inspection stored in the database 101, the actual fuel exchange time and the neutron detector replacement record in the past regular inspection process performance data. Based on the time, calculate the time required to replace the fuel and neutron detector during the regular inspection and reflect it in the fuel replacement and neutron detector replacement steps in the critical process model.

Next, the reactor open, nuclear Reactor recovery, reactor leak inspection, reactor pre-startup test, reactor start-up based on the actual time of reactor start-up, reactor opening of critical process template, reactor recovery, reactor leakage inspection, reactor pre-startup test, reactor start-up Reflect in the process.

Next, the above-described critical process model reflecting the past periodic inspection process performance data is displayed on the screen as the critical process of the periodic inspection work.

Next, the routine inspection process creation procedure creation function 111 determines which inspection equipment and what type of inspection equipment is to be inspected from the information, inspection equipment data, and safety regulations data about the inspection equipment to be implemented during the regular inspection period other than the input critical process. A procedure for allocating inspection times in order (priority order) is created and displayed (step 203 in FIG. 5).

For example, if A, B, C, D, and E are input as inspection devices, the order in which inspection times for these inspection devices are assigned, for example, A→D→C→E→B, etc., is displayed. Therefore, when creating a periodic inspection process, the process chart creator assigns the inspection times of the inspection equipment in the order in which they are displayed. The above priority order is such that, for example, work related to nuclear reactor equipment that directly affects critical processes is given top priority, followed by work on equipment related to fuel cooling, then work on equipment related to radioactive confinement, and then work on equipment related to radioactive confinement. The long construction work will be followed by the construction of important equipment. A list of prioritized construction project names is then displayed on the screen.

When assigning the inspection timing of the above-mentioned inspection equipment to the main process chart consisting of the above-mentioned critical steps, the process chart creation function 112 is used.

When the first inspection device displayed in the above-described procedure, for example A, is selected (step 204 in FIG. 5), the process chart creation function 112 generates inspection device data regarding A from the inspection device data 103 in the database 101. Extract. This inspection equipment data regarding A includes inspection results for A (including the required inspection period), data regarding the isolation (system isolation) required when inspecting A, and inspection of A. It includes data regarding the work area required when performing the work, and sub-work order ID information classified into main work orders and work types for each subject via the work order control unit 130. These data can be displayed on the display section 122 by operating the input section 121 if desired by the process sheet creator.

Further, the process chart creation function 112 extracts safety regulation data regarding the selected inspection equipment A from the safety regulation data 104. All the requirements (constraints) for creating a process regarding the inspection equipment A can be displayed on the display unit 122 by operating the input unit 121 if the process sheet creator desires.

In this way, the process chart creator can check the information regarding the inspection equipment A displayed on the display unit 122, that is, the inspection record for A (including the required inspection period), the information regarding the required Information about the work area and all requirements for process creation can be viewed. At this time, periods (assignable candidates) to which the inspection timing of the inspection equipment A can be assigned are displayed in the main process chart displayed on the display unit 122 (step 205 in FIG. 5). Further, all the requirements (constraints) for creating a process regarding the inspection equipment A are displayed as a check list, and the basis for the requirements can also be displayed as necessary.

Based on the information displayed on the display unit 122, the process chart creator assigns the inspection timing for the inspection equipment A to the main process chart in which the critical steps are displayed (step 206 in FIG. 5).

Similarly, the inspection timings of the inspection equipment are assigned in the main process chart in the order of inspection equipment D→C→E→B to create an entire periodic inspection process chart (step 207 in FIG. 5). In this case, the periodic inspection process chart that is currently being created is stored in the database 101 together with the main work order for each subject and sub-work order ID information classified by work type etc. via the work order control unit 130, and is stored as needed. The data can be read out and displayed on the display section 122.

When allocating inspection times for inspection equipment as described above, as the number of construction projects for which processes are set increases, the possible implementation period shown becomes shorter due to constraints, and it may become impossible to secure the construction period based on past results. comes out. However, the order of equipment inspection, its inspection steps, and work types are stored in the database 101 via the work order control unit 130 along with main work orders for each subject and sub-work order ID information classified into work types, etc. This makes it possible to respond flexibly to each adjustment item.

At this time, if the schedule creator sets the construction schedule beyond the executable period indicated by the device, the constraint conditions for the exceeded period are displayed on the screen. Additionally, if the cause of the restriction is another construction, the process chart creator is notified by changing the display color of the bar chart of the relevant construction. The process chart creator considers countermeasures based on the constraints displayed on the screen. The device displays multiple countermeasure candidates based on past performance to help process chart creators consider countermeasures. The work schedule creator searches for interfering construction work and the time when it can be carried out while moving the process of the relevant construction work on the screen. When the implementation conditions are met, the device displays this to notify the process chart creator, and the process chart creator sets the process.

For example, when allocating the inspection time of the inspection equipment E, there may be a case where it is desired to allocate the inspection period to a period other than the allocatable period (assignable candidate) displayed on the display unit 122. When the inspection time of inspection time E is assigned to such a period, during the assigned inspection period, for example, the isolation conditions of other inspection equipment (for example, inspection equipment A) scheduled for the same period, This may be due to factors such as interference with conditions related to the work area or failure to meet other constraint conditions. The process chart creation function 112 displays this factor on the display unit 122.

As a factor for this, for example, during a part of the period to which the inspection equipment E is assigned, there is an event where interference occurs between the work area and the inspection equipment A that is performed at the same time. In such a case, the process chart creation function 112 displays on the display unit 122 the times when interference with the inspection device A occurs, the times when it does not occur, and the inspection process for the inspection device E that can be performed even when interference occurs. Then, if the process chart creator avoids the problem of interference in the work area with inspection equipment A by changing part of the inspection timing or changing the inspection process of inspection equipment E, then inspection will be performed under those conditions. It is possible to allocate inspection timing for equipment E.

As described above, according to the periodic inspection process creation support device 100 of the present embodiment, a main process chart consisting of critical processes is automatically generated, and other inspection equipment is By assigning the inspection timing of each inspection equipment in the order displayed together with sub-work order ID information classified into work orders and work types, even non-skilled engineers can understand the safety of nuclear power plants. Able to create periodic inspection process plans.

The actual periodic inspection work is carried out based on the periodic inspection process chart created in advance as described above. In this embodiment, as shown in FIG. 1, the process creation support unit 110 is provided with a process monitoring unit 114, and this process monitoring unit 114 monitors the progress of the actual periodic inspection work according to the periodic inspection process chart. It will be monitored to see if progress is being made.

FIG. 6 shows an example of a screen showing the progress of this periodic inspection work. This progress monitoring is input for each process by the group that actually carries out the inspection work. The example shown in Figure 6 is a process chart for a full-scale inspection process for A-system pumps, which is roughly divided into preparatory work and pump disassembly.The bar chart shows whether the progress is on schedule or ahead of schedule. It shows whether there is a delay or if there is a delay. In the example shown in FIG. 6, the bar chart shows that a process delay occurs in loosening bolts in the pump disassembly process. Note that on the actual screen, if a delay in the process occurs, it is indicated by a color display such as red.

The image shown in FIG. 6 can be viewed not only by the group that actually performs the inspection work, but also by other groups (parallel or subsequent work groups, etc.) that need to share information. In addition, each group is linked via the work order control unit 130 using main work orders for each subject and sub-work order ID information classified by work type, etc., so other groups can check information related to their own group's inspection work. It is possible to recognize in real time that delays have occurred in inspection work.

Additionally, in such cases, it is necessary to warn subsequent or related worker groups of risk information, etc. In this embodiment, the regular inspection process creation support device 100, which is a common platform, shares main work orders for each subject and sub-work order ID information classified by work type etc. via the work order control unit 130. By doing so, it is possible to strengthen cooperation between each group. Furthermore, by recording events, processes, and countermeasure results that occur during regular inspections, it is possible to utilize them for analysis after regular inspections, and to accumulate know-how.

For this reason, as shown in FIG. 1, the periodic inspection process creation support device 100 is equipped with a communication function 113 and is connected to the network within the nuclear power plant, so that each group member can use a computer or tablet terminal. The regular inspection process creation support device 100 can be accessed via this network. That is, as shown in FIG. 7, in addition to the periodic inspection process creation support device 100, the network includes, for example, a group A that performs operation management, a group B that performs maintenance, and groups C1, C2, . . . , Cn that perform actual inspection work. etc. are connected, and each group can access the periodic inspection process creation support device 100 and share information, as well as communicate via the communication function 113.

Each work item between groups is given main work order for each subject and sub-work order ID information classified by work type etc. via the work order control unit 130 of the periodic inspection process creation support device 100, so each work item is can be identified.

Further, the communication function 113 includes a telephone call function and a text-based real-time communication (chat) function so that group members can communicate with each other. Communication between group members using this real-time communication (chat) function is recorded as text via the work order control unit 130 along with main work order for each subject and sub-work order ID information classified by work type, etc. Unlike phone calls, etc., you can check them later. Warnings to subsequent or related work groups, such as the aforementioned risk information, may be made, for example, via chat, etc.

In the database 101, inspection equipment data 103 includes maintenance information (subject, area/risk, process), operation management information (management items and processes (including isolation work management)), and is managed by the group that performs the actual inspection work. Information (work subjects, processes, management items, attributes) related to inspections, tests, and trial runs is stored, and each group can mutually confirm this information. This information can be displayed on the terminals of each group by selecting management items and attributes.

Further, the periodic inspection process creation support device 100 is capable of managing area/risk information and applying for maintenance/extension of work deadlines etc. via the communication function 113. In other words, parallel or subsequent working groups can coordinate area and risk information, and when interference occurs or the risk becomes high, requests for deadline extensions or adjustments can be made, and intentions can be confirmed with upper management. It has become. If the deadline is extended or adjusted, the periodic inspection schedule will be changed and the parallel or subsequent work groups will be notified.

Here, FIGS. 8 and 9 show display examples of risk information in a certain area. FIG. 8 shows risk information for 〇 month×day, and FIG. 9 shows risk information for 〇 month △ day.

As shown in FIGS. 8 and 9, risk information in an area is displayed, for example, on a plan view of a nuclear reactor building in a color corresponding to the risk. Regarding the work area and safety measures, the height of the scaffolding is expressed as, for example, high (blue), medium (pink), and low (green). In addition, areas to prevent scaffolding from falling are shown in yellow frames, and physical protection areas are shown in green frames.

In FIGS. 8 and 9, important equipment and systems include A system piping (20A/150A), B system piping (20A), C system pool water level gauge, and A system tank.

Note that in FIGS. 8 and 9, the colors actually applied to the images are indicated by letters in parentheses, such as (blue), (black), etc. Regarding the scaffolding, the scaffolding around the A-system tank is pink, the scaffolding around the B-system piping is blue, and the center scaffolding is green. Furthermore, the frame portions marked yellow indicate locations for preventing scaffolding from falling, and the frame portions marked green indicate locations for physical protection.

Regarding important equipment and systems, in Figure 8, only the C-system pool water level gauge has a high risk and is shown in blue and R, and the A-system piping (20A/150A), B-system piping (20A), System tanks are shown in black. On the other hand, in Figure 9, A system piping (20A/150A) and A system piping (20A/150A) are shown in red and R as being at high risk, and B system piping (20A) and C system pool water level gauge are also at high risk. is shown in blue and R. In addition to having the function of displaying colors in this way, if new restrictions arise, such as prohibition of entry within 0 meters, it is also possible to add them.

FIG. 10 shows another display example of risk information. In addition, in Figure 10, the degree of risk is indicated by the letters (green), (yellow), and (red) shown in the table, but in the actual display, instead of letters, the degree of risk is displayed in colors of yellow, red, and green. indicates the degree of risk. The example shown in FIG. 10 shows the risk status from July 1st to July 11th for the decay heat removal function, water injection function, confinement function, and power supply function. Regarding the containment function and power supply function, both indicators are green, indicating that the risk is low. Regarding the water injection function, all indicators are yellow, indicating that the risk is medium. Regarding the fever removal function, the period from July 8th to July 10th is red and the risk is high, and the other periods are yellow and the risk is medium. In this way, changes in risk for each function can be recognized from the display screen. It is also possible to confirm them together with the examples shown in FIGS. 8 and 9.

The risk situation in each area changes depending on the inspection work performed as described above. For example, in the area classification risk of a controlled area, due to a delay in the process, the place where the scaffolding was intended to be erected has been set as Zone C due to another work, and in the risk due to dose rate, due to a delay in the process, An example of this would be if the main shield in the immediate vicinity had been removed due to unrelated work, resulting in a high dose rate. This area/risk information is shared through the periodic inspection process creation support device 100 along with the main work order for each subject and sub-work order ID information classified by work type etc. through the work order control unit 130. If there is interference or the risk is high when extending the deadline, requests can be made to other work groups or management groups for extensions or adjustments, and the intention can be confirmed with upper management. I can do it. At that time, the priority information assigned to each inspection assigned to the main work order (related information such as on the critical path, important equipment, fire prevention division, flood boundary, dose rate, area classification of control area, etc.) (ranked according to risk) can be checked at the same time, making it possible to make adjustments efficiently.

Similarly, applications can be made to maintain or extend deadlines for operation management (system operation, isolation management, etc.).

As mentioned above, by referring to area/risk information, etc., it is possible to understand which groups will be performing other inspection work that will affect the system, and it is possible to easily adjust deadlines and apply for extensions. After completing the adjustment, process corrections can be made for both maintenance and operation.

In addition, information regarding the periodic inspection process sheet created as described above (periodic inspection process sheet before the start of work), data regarding the periodic inspection process sheet that was revised during the actual periodic inspection work, and the circumstances that led to the need for the correction. After the regular inspection is completed, past regular inspection process performance data 105 of the database 101 is stored, and know-how regarding the regular inspection is accumulated in the database 101. As a result, the know-how obtained from the regular inspection carried out this time will be utilized in the creation of the periodic inspection process chart for the next time onward, making it possible to create the periodic inspection process chart with higher accuracy.

The above explained the case of conducting regular inspections of one nuclear power plant, but in reality, multiple nuclear power plants are installed on the premises of one power plant, and multiple nuclear power plants are configured. Periodic inspections of these nuclear power plants may be conducted at the same time. In such cases, in addition to constraints on isolation and work areas within one nuclear power plant, constraints such as the equipment used and the number of personnel required for work must be considered as constraints between each nuclear power plant. may occur. In such a case, it may be necessary to manage the periodic inspection process in each nuclear power plant using one periodic inspection process chart.

FIG. 11 shows an example of a periodic inspection schedule when a plurality of nuclear reactors are installed within the premises of one power plant as described above. The example of the periodic inspection process chart shown in FIG. 11 shows an example in which periodic inspections are performed on three reactors, Unit A, Unit B, and Unit C, at the same time. In the example of the periodic inspection schedule shown in Figure 11, information on the period during which the system will be stopped (non-standby), information on the work to be performed during the system outage period, information on the inspection timing of cranes and lifting equipment, Task-dependent information (constraint display) that indicates work restriction information that prohibits execution, such as when there is work A and work B, B cannot be performed unless A is completed, and inspections conducted by government agencies. Contains information, etc. In such a case, as mentioned above, it is necessary to consider the equipment used, the number of personnel required for the work, the government inspections mentioned above, etc., as constraints that cannot be carried out at the same time at each nuclear power plant.

It is also possible to display the information in FIG. 8, FIG. 9, or FIG. 10 from each work item in FIG. 11, or vice versa.

Although several embodiments of the present invention have been described above, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and changes can be made without departing from the gist of the invention. These embodiments and their modifications are included within the scope and gist of the invention, as well as within the scope of the invention described in the claims and its equivalents.

100... Periodic inspection process creation support device, 101... Database, 102... Implementation work information, 103... Inspection equipment data, 104... Safety regulations data, 105... Past periodic inspection process performance data, 110... Process Creation support section, 111... Routine inspection process creation procedure creation function, 112... Process chart creation function, 113... Communication function, 114... Process monitoring section, 121... Input section, 122... Display section, 130... ...Work order control section.

Claims (8)

A periodic inspection process creation support device that supports the creation of a periodic inspection process chart for periodic plant inspections carried out by multiple groups,
an input section and a display section;
A database that stores information on work performed during periodic inspections, inspection equipment data that is data on inspection equipment that is subject to inspection including important equipment, and safety regulation data that is all requirements for creating periodic inspection processes. ,
A process management database in which information for managing the process of regular plant inspections is registered;
a work order control unit that performs work order-related settings based on information stored in the database and the process management database;
From the information about the inspection equipment to be carried out during the regular inspection period other than the critical process entered based on the information stored in the database, the inspection equipment data, and the safety regulations data, which inspection equipment and which a process chart creation function unit that creates the periodic inspection process chart by creating a procedure for assigning inspection times in priority order;
Compare the process of the periodic inspection process sheet created by the process sheet creation function unit with the progress of the actual periodic inspection process, and check whether the progress of the actual periodic inspection work is progressing according to the periodic inspection process sheet. a process monitoring department that monitors whether or not the
a communication function that is connected to a network, enables communication with a plurality of the groups, and allows progress information indicating monitoring results in the process monitoring unit to be viewed in the plurality of groups;
Equipped with
The work order control unit sends at least one main work order created for each inspection device to be inspected and related to the periodic inspection to a department involved in the periodic inspection, a work form of the periodic inspection, and a target of the periodic inspection. a work order setting unit that receives settings for dividing into a plurality of sub-work orders and performs work order-related settings based on at least one of the inspection equipment;
a work order registration unit that registers sub-work order IDs that can individually identify the sub-work orders in the process management database;
a plan information registration unit that registers plan information indicating a work plan in the process management database in association with the related sub-work order ID;
a performance information registration unit that registers performance information indicating work performance in the process management database in association with the sub-work order ID;
A periodic inspection process creation support device characterized by having the following. The periodic inspection process creation support device according to claim 1,
When the actual periodic inspection process is delayed or moved forward, the process monitoring unit sends the main work order and the work type for each subject via the work order control unit related to the periodic inspection process in which the delay or acceleration has occurred. A periodic inspection process creation support device characterized by communicating information linked to sub-work order IDs classified into groups to the group. The periodic inspection process creation support device according to claim 1 or 2,
The database classifies data regarding risk management target equipment, areas, divisions, zone classifications, and risk management target items of the risk management target equipment into main work orders and work types for each subject via the work order control unit. stored as information linked to the sub-work order ID,
The periodic inspection process creation support device is characterized in that the process monitoring unit is capable of displaying information on risks that change over time depending on the progress of the processes in the periodic inspection process chart. In the periodic inspection process creation support device according to claim 2,
A periodic inspection process creation support device, characterized in that it is possible to apply for deadline adjustment or extension to the group related to the periodic inspection process in which the delay or advance has occurred, via the communication function. In the periodic inspection process creation support device according to claim 4,
The periodic inspection process creation support device is characterized in that the process chart creation function section extends the inspection period of the periodic inspection process in which the delay has occurred and creates a modified process chart. A periodic inspection process creation support method for supporting the creation of a periodic inspection process chart for periodic inspections of a nuclear power plant carried out by multiple groups, the method comprising:
an input section and a display section;
a communication function that is connected to a network and enables communication with a plurality of the groups;
A database that stores information on work performed during periodic inspections, inspection equipment data that is data on inspection equipment that is subject to inspection including important equipment, and safety regulation data that is all requirements for creating periodic inspection processes. ,
A process management database in which information for managing the process of regular plant inspections is registered;
a work order control unit that performs work order-related settings based on information stored in the database and the process management database;
From the information about the inspection equipment to be carried out during the regular inspection period other than the critical process entered based on the information stored in the database, the inspection equipment data, and the safety regulations data, which inspection equipment and which a process chart creation function unit that creates the periodic inspection process chart by creating a procedure for assigning inspection times in priority order;
Compare the process of the periodic inspection process sheet created by the process sheet creation function unit with the progress of the actual periodic inspection process, and check whether the progress of the actual periodic inspection work is progressing according to the periodic inspection process sheet. a process monitoring department that monitors whether the actual regular inspection process is delayed or brought forward and contacts the group related to the regular inspection process where the delay or advance has occurred;
Equipped with
The work order control unit sends at least one main work order created for each inspection device to be inspected and related to the periodic inspection to a department involved in the periodic inspection, a work form of the periodic inspection, and a target of the periodic inspection. a work order setting unit that receives settings for dividing into a plurality of sub-work orders and performs work order-related settings based on at least one of the inspection equipment;
a work order registration unit that registers sub-work order IDs that can individually identify the sub-work orders in the process management database;
a plan information registration unit that registers plan information indicating a work plan in the process management database in association with the related sub-work order ID;
a performance information registration unit that registers performance information indicating work performance in the process management database in association with the sub-work order ID;
Using a periodic inspection process creation support device with
A periodic inspection process preparation support method, characterized in that an application for deadline adjustment or extension is applied to the group related to the periodic inspection process in which the delay or advance has occurred, via the communication function. The plurality of main work orders include a first main work order and a different second main work order,
The work order registration section is
When the sub-work order divided from the first main work order is related to the second main work order,
registering the sub-work order ID of the first main work order in the process management database in association with the second main work order;
The periodic inspection process creation support device according to claim 1. Each of the plurality of groups involved in the periodic inspection is an organization that makes decisions individually,
Among the tasks assigned to each of the groups, a plurality of the tasks related across the plurality of groups are included in one of the sub-work orders;
The periodic inspection process creation support device according to claim 1.

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